Hi, I'm Nabeel Ahsan

Backend-focused Full-Stack Developer with experience building scalable and secure systems used by 1,500+ users. Skilled in Node.js, Python, FastAPI, REST APIs, and cloud deployment with proven performance optimizations (up to 60% latency reduction). Competitive programmer with strong problem-solving skills, 2024 & 2025 ICPC Dhaka Regionalist, and Codeforces Specialist (1420+).

View Projects

About Me

I'm a passionate Backend Developer and Competitive Programmer currently working at ICT Cell, Jatiya Kabi Kazi Nazrul Islam University. With a strong foundation in computer science and hands-on experience in building scalable web applications, I've successfully deployed platforms serving over 1,500+ users.

My journey in competitive programming has shaped my problem-solving skills, having solved 1,500+ problems across various platforms with a max rating of 1420+ (Specialist) on Codeforces. I have consistently demonstrated competitive excellence at the regional level as a 2024 & 2025 ICPC Dhaka Regionalist. My achievements include winning the TechMind Hackathon 2025 as Champion, securing 1st Runner-up at multiple divisional contests, and ranking in the Top 7% (150/1800+) at the ICPC Asia Dhaka Regional 2025 Preliminary.

1500+ Users Served
15+ REST APIs Built
1500+ Problems Solved
60% Performance Improved
Nabeel Ahsan

Experience

Backend Developer

2024 – 2025

ICT Cell, JKKNIU, Mymensingh

Mymensingh, Bangladesh

Developer Info
  • Designed, built, and maintained alumni & research platforms serving 1,500+ users with 99.9% uptime, deployed and optimized using NGINX
  • Developed 15+ REST APIs with 95% unit test coverage, reducing production bugs by 30%
  • Automated high-volume email workflows (600+/cycle) achieving 99.99% delivery success
  • Optimized backend queries and logic, improving data retrieval performance by 60%
Research Center Platform researchcenter.jkkniu.edu.bd CSE Alumni Platform csealumni.jkkniu.edu.bd

Featured Projects

Hall Management System – JKKNIU

Paid Project

Full-stack Hall Management System managing 3,000+ student records across 4+ residential halls with scalable support for new hall onboarding, automated fee tracking, and secure device-level authentication.

PHP MySQL Bootstrap 5 FPDF FingerprintJS
  • Managed 3,000+ student records across 4+ residential halls with scalable support for new hall onboarding
  • Scraped public Sonali Bank data to track student fee payments and automatically compute outstanding dues
  • Secured the admin dashboard using device-level authentication with FingerprintJS
  • Automated seat allotment, rent tracking, and administrative reporting with responsive Bootstrap 5 interface
Live Demo

Research & Extension Center Management System

Professional Project

Scalable research workflow system used by 1,500+ users, managing proposal submission, review, and approval with distributed reviewer authentication and secure budget allocation.

Node.js React MongoDB JWT NGINX
  • Built scalable research workflow system used by 1,500+ users, managing proposal submission, review, and approval
  • Distributed proposals to 200+ reviewers across multiple cities via JWT-based email token authentication (600+ emails sent)
  • Achieved 99.99% data accuracy, enabling secure proposal approval and research budget allocation
  • Full-stack platform with Node.js backend, React frontend, and MongoDB database
Live Demo

Multilingual RAG System

Personal

Bengali–English chatbot with semantic chunking and OCR capabilities. Implemented fast retrieval using FAISS and sentence transformers for efficient document search.

Python FastAPI React FAISS Sentence Transformers
  • Built Bengali–English chatbot with semantic chunking and OCR capabilities
  • Implemented fast retrieval using FAISS and sentence transformers
  • FastAPI backend with React frontend for multilingual document processing
  • Advanced language detection and efficient semantic search
GitHub Live Demo

Technical Skills

Languages

C++ Python Java JavaScript PHP SQL

Backend/DB

Node.js Express.js FastAPI PHP (PDO) MySQL MongoDB FAISS

Cloud/DevOps

Docker NGINX Linux Server CI/CD Git Certbot SSL

Specialized

RAG Systems LLM Integration GPT-4o Gemini Competitive Programming

Frontend

React.js Bootstrap 5 Tailwind CSS Responsive Design

Tools

Postman GitHub FingerprintJS REST APIs

🏆 Awards & Honours

TechMind Hackathon 2025 - Champion

Champion - Team: MamaDeployMar | September 2025

Mymensingh Divisional Programming Contest

1st Runners Up - Team: MamaDPMar | February 2025

E-Governance And Innovation Action Plan

2nd Runner-up - Innovation Showcasing Program | 2023-2024

ICPC Asia Dhaka Regional 2025 Preliminary

Top 7% (Rank 150/1800+) - Team: Mama_DP_Mar

View Results

ICPC Asia Dhaka Regional 2025 Onsite

Participant - Team: Mama_DP_Mar

View Results

NeU Mymensingh Regional IUPC 2025

1st Runner-up

View Results

ICPC Dhaka Regionals 2024 Preliminary

Top 13% - Team: Team_Three_Dots | December 2024

View Results

Technovation'25 Hackathon

5th Place - Team: MamaDeployMar | September 2025

UAP Cyber Siege CTF 2025

8th Place - Team: CP > CTF | May 2025

BUP CSE Tech Carnival CTF 2025

14th Place - Team: MamaDecryptMar | September 2025

Education

Bachelor of Science in Computer Science and Engineering

Jatiya Kabi Kazi Nazrul Islam University

Mymensingh, Bangladesh

2022 – 2025 GPA: 3.47/4.00

Specialized in software engineering, data structures & algorithms, and web development. Active participant in competitive programming and technical projects during academic tenure.

Get In Touch

Let's Work Together

I'm always interested in new opportunities and exciting projects. Whether you have a question or just want to say hi, I'll try my best to get back to you!

Email

nabeelahsanofficial@gmail.com

Phone

+880 1797 191806

Location

Dhaka, Bangladesh